Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence
Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission ele...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ding, Mingye [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2013 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media New York 2013 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials science - Springer US, 1966, 48(2013), 14 vom: 22. März, Seite 4989-4998 |
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| Übergeordnetes Werk: |
volume:48 ; year:2013 ; number:14 ; day:22 ; month:03 ; pages:4989-4998 |
| Links: |
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| DOI / URN: |
10.1007/s10853-013-7285-x |
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| Katalog-ID: |
OLC2046386825 |
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| 245 | 1 | 0 | |a Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence |
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| 520 | |a Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. The luminescence mechanisms for the doped lanthanide ions were thoroughly analyzed. | ||
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| 650 | 4 | |a NaYF4 | |
| 650 | 4 | |a Bright Field Transmission Electron Microscopy Image | |
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| 700 | 1 | |a Song, Jianbin |4 aut | |
| 700 | 1 | |a Ni, Yaru |4 aut | |
| 700 | 1 | |a Xu, Zhongzi |4 aut | |
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10.1007/s10853-013-7285-x doi (DE-627)OLC2046386825 (DE-He213)s10853-013-7285-x-p DE-627 ger DE-627 rakwb eng 670 VZ Ding, Mingye verfasserin aut Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2013 Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. The luminescence mechanisms for the doped lanthanide ions were thoroughly analyzed. Molten Salt NaYF4 Bright Field Transmission Electron Microscopy Image Molten Salt Method Strong Green Emission Lu, Chunhua aut Cao, Linhai aut Song, Jianbin aut Ni, Yaru aut Xu, Zhongzi aut Enthalten in Journal of materials science Springer US, 1966 48(2013), 14 vom: 22. März, Seite 4989-4998 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2013 number:14 day:22 month:03 pages:4989-4998 https://doi.org/10.1007/s10853-013-7285-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2013 14 22 03 4989-4998 |
| spelling |
10.1007/s10853-013-7285-x doi (DE-627)OLC2046386825 (DE-He213)s10853-013-7285-x-p DE-627 ger DE-627 rakwb eng 670 VZ Ding, Mingye verfasserin aut Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2013 Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. The luminescence mechanisms for the doped lanthanide ions were thoroughly analyzed. Molten Salt NaYF4 Bright Field Transmission Electron Microscopy Image Molten Salt Method Strong Green Emission Lu, Chunhua aut Cao, Linhai aut Song, Jianbin aut Ni, Yaru aut Xu, Zhongzi aut Enthalten in Journal of materials science Springer US, 1966 48(2013), 14 vom: 22. März, Seite 4989-4998 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2013 number:14 day:22 month:03 pages:4989-4998 https://doi.org/10.1007/s10853-013-7285-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2013 14 22 03 4989-4998 |
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10.1007/s10853-013-7285-x doi (DE-627)OLC2046386825 (DE-He213)s10853-013-7285-x-p DE-627 ger DE-627 rakwb eng 670 VZ Ding, Mingye verfasserin aut Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2013 Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. The luminescence mechanisms for the doped lanthanide ions were thoroughly analyzed. Molten Salt NaYF4 Bright Field Transmission Electron Microscopy Image Molten Salt Method Strong Green Emission Lu, Chunhua aut Cao, Linhai aut Song, Jianbin aut Ni, Yaru aut Xu, Zhongzi aut Enthalten in Journal of materials science Springer US, 1966 48(2013), 14 vom: 22. März, Seite 4989-4998 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2013 number:14 day:22 month:03 pages:4989-4998 https://doi.org/10.1007/s10853-013-7285-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2013 14 22 03 4989-4998 |
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10.1007/s10853-013-7285-x doi (DE-627)OLC2046386825 (DE-He213)s10853-013-7285-x-p DE-627 ger DE-627 rakwb eng 670 VZ Ding, Mingye verfasserin aut Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2013 Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. The luminescence mechanisms for the doped lanthanide ions were thoroughly analyzed. Molten Salt NaYF4 Bright Field Transmission Electron Microscopy Image Molten Salt Method Strong Green Emission Lu, Chunhua aut Cao, Linhai aut Song, Jianbin aut Ni, Yaru aut Xu, Zhongzi aut Enthalten in Journal of materials science Springer US, 1966 48(2013), 14 vom: 22. März, Seite 4989-4998 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2013 number:14 day:22 month:03 pages:4989-4998 https://doi.org/10.1007/s10853-013-7285-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2013 14 22 03 4989-4998 |
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10.1007/s10853-013-7285-x doi (DE-627)OLC2046386825 (DE-He213)s10853-013-7285-x-p DE-627 ger DE-627 rakwb eng 670 VZ Ding, Mingye verfasserin aut Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence 2013 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2013 Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. The luminescence mechanisms for the doped lanthanide ions were thoroughly analyzed. Molten Salt NaYF4 Bright Field Transmission Electron Microscopy Image Molten Salt Method Strong Green Emission Lu, Chunhua aut Cao, Linhai aut Song, Jianbin aut Ni, Yaru aut Xu, Zhongzi aut Enthalten in Journal of materials science Springer US, 1966 48(2013), 14 vom: 22. März, Seite 4989-4998 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:48 year:2013 number:14 day:22 month:03 pages:4989-4998 https://doi.org/10.1007/s10853-013-7285-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_32 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 48 2013 14 22 03 4989-4998 |
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X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. 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Ding, Mingye |
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Ding, Mingye ddc 670 misc Molten Salt misc NaYF4 misc Bright Field Transmission Electron Microscopy Image misc Molten Salt Method misc Strong Green Emission Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence |
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670 VZ Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence Molten Salt NaYF4 Bright Field Transmission Electron Microscopy Image Molten Salt Method Strong Green Emission |
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ddc 670 misc Molten Salt misc NaYF4 misc Bright Field Transmission Electron Microscopy Image misc Molten Salt Method misc Strong Green Emission |
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ddc 670 misc Molten Salt misc NaYF4 misc Bright Field Transmission Electron Microscopy Image misc Molten Salt Method misc Strong Green Emission |
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Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence |
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Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence |
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Ding, Mingye Lu, Chunhua Cao, Linhai Song, Jianbin Ni, Yaru Xu, Zhongzi |
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facile synthesis of β-$ nayf_{4} $:$ ln^{3+} $ (ln = eu, tb, yb/er, yb/tm) microcrystals with down- and up-conversion luminescence |
| title_auth |
Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence |
| abstract |
Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. The luminescence mechanisms for the doped lanthanide ions were thoroughly analyzed. © Springer Science+Business Media New York 2013 |
| abstractGer |
Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. The luminescence mechanisms for the doped lanthanide ions were thoroughly analyzed. © Springer Science+Business Media New York 2013 |
| abstract_unstemmed |
Abstract β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) hexagonal microrods have been successfully synthesized through a facile molten salt method without any surfactant. X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, high-resolution transmission electron microscopy, and photoluminescence spectra were used to characterize the samples. It is found that at a preferred reaction temperature of 400 °C, the structure of β-$ NaYF_{4} $ can gradually transform from microtubes to microrods as reaction time extends from 0.5 to 4 h. Furthermore, as the molar ratio of NaF:$ RE^{3+} $ (RE represents the total amount of $ Y^{3+} $ and the doped rare earth elements such as $ Eu^{3+} $, $ Tb^{3+} $, $ Yb^{3+} $/$ Er^{3+} $, or $ Yb^{3+} $/$ Tm^{3+} $) increased, the phase of sample transforms from $ YF_{3} $ into $ NaYF_{4} $. Under the excitation of 395 nm ultraviolet light, β-$ NaYF_{4} $:5 %$ Eu^{3+} $ shows the emission lines of $ Eu^{3+} $ corresponding to 5$ D_{0-3} $ → 7$ F_{J} $ (J = 1–4) transitions from 400 to 700 nm, resulting in red down-conversion (DC) light emission. When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. The luminescence mechanisms for the doped lanthanide ions were thoroughly analyzed. © Springer Science+Business Media New York 2013 |
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Facile synthesis of β-$ NaYF_{4} $:$ Ln^{3+} $ (Ln = Eu, Tb, Yb/Er, Yb/Tm) microcrystals with down- and up-conversion luminescence |
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When doped with 5 % $ Tb^{3+} $ ions, the strong DC fluorescence corresponding to 5$ D_{4} $ → 7$ F_{J} $ (J = 6, 5, 4, 3) transitions with 5$ D_{4} $ → 7$ F_{J} $ (green emission at 544 nm) being the most prominent group that has been observed. Moreover, upon 980 nm laser diode excitation, the $ Yb^{3+} $/$ Er^{3+} $- and $ Yb^{3+} $,$ Tm^{3+} $- co-doped β-$ NaYF_{4} $ samples exhibit bright yellow and blue upconversion (UC) luminescence, respectively, by two- or three-photon UC process. 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März, Seite 4989-4998</subfield><subfield code="w">(DE-627)129546372</subfield><subfield code="w">(DE-600)218324-9</subfield><subfield code="w">(DE-576)014996774</subfield><subfield code="x">0022-2461</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:48</subfield><subfield code="g">year:2013</subfield><subfield code="g">number:14</subfield><subfield code="g">day:22</subfield><subfield code="g">month:03</subfield><subfield code="g">pages:4989-4998</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">https://doi.org/10.1007/s10853-013-7285-x</subfield><subfield code="z">lizenzpflichtig</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-TEC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_30</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_32</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2004</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2005</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4046</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">48</subfield><subfield code="j">2013</subfield><subfield code="e">14</subfield><subfield code="b">22</subfield><subfield code="c">03</subfield><subfield code="h">4989-4998</subfield></datafield></record></collection>
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